2003 Alfa Romeo 156 vs. 2001 Opel Vectra
To start off, 2003 Alfa Romeo 156 is newer by 2 year(s). Which means there will be less support and parts availability for 2001 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2001 Opel Vectra would be higher. At 2,198 cc (4 cylinders), 2001 Opel Vectra is equipped with a bigger engine. In terms of performance, 2001 Opel Vectra (145 HP @ 5600 RPM) has 27 more horse power than 2003 Alfa Romeo 156. (118 HP @ 6200 RPM) In normal driving conditions, 2001 Opel Vectra should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2001 Opel Vectra weights approximately 170 kg more than 2003 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2001 Opel Vectra (203 Nm @ 4000 RPM) has 57 more torque (in Nm) than 2003 Alfa Romeo 156. (146 Nm @ 4200 RPM). This means 2001 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156. 2001 Opel Vectra has automatic transmission and 2003 Alfa Romeo 156 has manual transmission. 2003 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2001 Opel Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2001 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Vectra |
| Year Released | 2003 | 2001 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1596 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 118 HP | 145 HP |
| Engine RPM | 6200 RPM | 5600 RPM |
| Torque | 146 Nm | 203 Nm |
| Torque RPM | 4200 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 86 mm |
| Engine Stroke Size | 75.7 mm | 94.6 mm |
| Engine Compression Ratio | 10.3:1 | 10.0:1 |
| Top Speed | 200 km/hour | 210 km/hour |
| Acceleration 0-100mph | 11.6 seconds | 10.8 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1315 kg | 1485 kg |
| Vehicle Length | 4450 mm | 4600 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2610 mm |
| Fuel Tank Capacity | 63 L | 61 L |
